Local GW tournament coming up. I tweaked around for quite a while and thougth this is the list I would want to use. It has Draigo (personal favourite), good anti-tank and will look very good on tabletop.

2 Psycannons in each of your SS, and the Purifier Squad is 60 points and will bring some much needed anti-tank, plus rending is nice on MEQ. Maybe a master crafted hammer on the Purifiers too in case you get tied up by a walker?